com.amazonaws.services.dynamodbv2.xspec

Class QueryExpressionSpec

java.lang.Object

com.amazonaws.services.dynamodbv2.xspec.QueryExpressionSpec

@Beta
public final class QueryExpressionSpec
extends Object

Expression specification for making query request to Amazon DynamoDB.

Even though the internal name map and value map are unmodifiable, this object is only as unmodifiable as the underlying values in it's value map. In turn, the values in the value maps are essentially provided by the users of this library. In other words, this object is thread-safe as long as the underlying values provided by the users are thread-safe.

Method Summary

Modifier and Type	Method and Description
String	getFilterExpression() Returns the condition expression; or null if there is none.
String	getKeyConditionExpression() Returns the key condition expression; or null if there is none.
Map<String,String>	getNameMap() Returns the name map which is unmodifiable; or null if there is none.
String	getProjectionExpression() Returns the projection expression; or null if there is none.
Map<String,Object>	getValueMap() Returns the value map which is unmodifiable; or null if there is none.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getProjectionExpression

public String getProjectionExpression()

Returns the projection expression; or null if there is none.

getFilterExpression

public String getFilterExpression()

Returns the condition expression; or null if there is none.

getKeyConditionExpression

public String getKeyConditionExpression()

Returns the key condition expression; or null if there is none.

getNameMap

public Map<String,String> getNameMap()

Returns the name map which is unmodifiable; or null if there is none.

getValueMap

public Map<String,Object> getValueMap()

Returns the value map which is unmodifiable; or null if there is none.